What is an AI Gateway and do I need one?
Category:LLM Privacy & Compliance
Quick Answer
An AI Gateway is a proxy layer between your app and LLM providers — like a firewall for AI traffic. It handles PII scanning, redaction, logging, rate limiting, and policy enforcement. You need one if you process PII through LLMs or need audit trails for compliance.
Detailed Answer
An AI Gateway is a proxy layer between your application and LLM providers:
User Input → Your App → AI Gateway → LLM Provider │ PII Scan, Redaction Logging, Rate Limit Policy Enforcement
You need one if:
- You process any user PII through LLMs
- Youre subject to GDPR, HIPAA, or CCPA
- You use multiple LLM providers
- You need audit trails for compliance
- You want centralized control without changing app code
Options:
- Kong AI Gateway — commercial, enterprise features
- LiteLLM Proxy — open source, Presidio integration
- Custom build — FastAPI + Microsoft Presidio
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